<template>
<div class="icons">
  <swiper>
    <swiper-slide v-for="page in pages" :key="page.index">
      <div class="icon" v-for="item in page" :key="item.id">
        <div class="icon-img">
          <img class="icon-img-content" :src="item.imgUrl" alt=""  >
          <p class="icon-desc">{{item.desc}}</p>
        </div>
      </div>
    </swiper-slide>
  </swiper>
</div>
</template>

<script>
export default {
  name: 'HomeIcons',
  data () {
    return {
      iconList: [
        {
          id: '0001',
          imgUrl: 'http://img1.qunarzz.com/piao/fusion/1611/54/ace00878a52d9702.png',
          desc: '景点门票'
        }, {
          id: '0002',
          imgUrl: 'http://img1.qunarzz.com/piao/fusion/1711/df/86cbcfc533330d02.png',
          desc: '滑雪季'
        }, {
          id: '0003',
          imgUrl: 'http://img1.qunarzz.com/piao/fusion/1710/a6/83f636bd75ae6302.png',
          desc: '泡温泉'
        }, {
          id: '0004',
          imgUrl: 'http://img1.qunarzz.com/piao/fusion/1611/35/2640cab202c41b02.png',
          desc: '动植园'
        }, {
          id: '0005',
          imgUrl: 'http://img1.qunarzz.com/piao/fusion/1611/d0/e09575e66f4aa402.png',
          desc: '游乐园'
        }, {
          id: '0006',
          imgUrl: 'http://img1.qunarzz.com/piao/fusion/1611/59/569d3c096e542502.png',
          desc: '必游榜单'
        }, {
          id: '0007',
          imgUrl: 'http://img1.qunarzz.com/piao/fusion/1611/17/4bd370f3eb1acd02.png',
          desc: '演出'
        }, {
          id: '0008',
          imgUrl: 'http://img1.qunarzz.com/piao/fusion/1611/7f/b1ea3c8c7fb6db02.png',
          desc: '城市观光'
        },
        {
          id: '0009',
          imgUrl: 'http://img1.qunarzz.com/piao/fusion/1611/7f/b1ea3c8c7fb6db02.png',
          desc: '城市观光'
        }]
    }
  },
  computed: {
    pages () {
      const pages = []
      this.iconList.forEach((item, index) => {
        // 展示第几页的图标
        const page = Math.floor(index / 8)
        if (!pages[page]) {
          pages[page] = []
        }
        pages[page].push(item)
      })
      return pages
    }
  }
}
</script>

<style lang="less" scoped>
.icons /deep/ .swiper-container{
    height: 0;
    padding-bottom: 50%;
    margin-top: .1rem;
    .icon{
      position: relative;
      width: 25%;
      height: 0;
      float: left;
      padding-bottom: 25%;
      .icon-img{
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: .44rem;
        box-sizing: border-box;
        padding: .1rem;
        .icon-img-content{
          display: block;
          margin:0 auto;
          height: 100%;
        }
      }
      .icon-desc{
        margin-top: .2rem;
        text-align: center;
      }
    }
}
</style>
